US3303266A - Electrical connector for small insulated wires - Google Patents
Electrical connector for small insulated wires Download PDFInfo
- Publication number
- US3303266A US3303266A US406062A US40606264A US3303266A US 3303266 A US3303266 A US 3303266A US 406062 A US406062 A US 406062A US 40606264 A US40606264 A US 40606264A US 3303266 A US3303266 A US 3303266A
- Authority
- US
- United States
- Prior art keywords
- thin metallic
- clamped
- metallic member
- conductors
- small
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims description 37
- 238000009413 insulation Methods 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2495—Insulation penetration combined with permanent deformation of the contact member, e.g. crimping
Definitions
- This invention relates to an electrical connector for making electrical connections between a pair of relatively small insulated conductors without having to strip the insulation therefrom.
- An object of this invention is to provide an improved electrical connector in the form of a bendable member having opposed surfaces which are provided with staggered insulation piercing pointed contacts adapted to pierce the insulation of a relatively small wire to make contact therewith and to provide electrical connection between a pair of such wires clamped between said opposed surfaces.
- Another object of this invention is to provide an improved electrical connector a plurality of which may be used side by side for splicing the conductors of a multiple conductor branch cable to the conductors of a main multiple conductor cable without necessitating the cutting of any of the conductors of the main cable and without necessitating the stripping of insulation from any of the conductors.
- Still another object of this invention is to provide an improved electrical connector which may be clamped around the small conductors of cables for connecting these conductors together without stripping the insulation or cutting the conductors, said electrical connectors being arranged side by side and being provided with insulation jackets to prevent the electrically conducting parts of adjacent connectors from making electrical contact.
- a further object of this invention is to provide an electrical connector that may be used for splicing the conductors of one cable to those of another cable, said connectors being constructed so that they may be used efiiciently with small wires such as are used in telephone cables without requiring the stripping of insulation from the wires thus resulting in substantial savings in time and labor required to splice such cables.
- FIG. 1 is a side view of an electrical connector of this invention in the open position
- FIG. 2 is an end view of the open electrical connector
- FIG. 3 is a fragmentary sectional view taken along the line 3-3 of FIG. 1 showing the manner in which the small insulated conductors are positioned on the insulation piercing contact points of the electrical connector;
- FIG. 4 is a view of the electrical connector of this invention clamped with a pair of small insulated wires clamped therebetween to electrically connect the wires;
- FIG. 5 is a view of a multiple conductor main cable having the conductors of a branch cable connected thereto by a plurality-of the electrical connectors of this in- 3,303,266 Patented Feb. 7, 1967 in the opposed surfaces are preferably staggered so that when a small electrical conductor 12 is positioned and clamped between these opposed surfaces, the likelihood of the conductor being lodged between the points 11 is prevented and instead the insulation [13 thereof pierced by a sufficient number of the points to make good electrical contact with the conductor 12.
- the staggering of the points 11 is important where electrical conductors 12 with diameter smaller than the distance between adjacent points 11 are clamped between the opposed surfaces so that electrical contact is made with the conductors by several of the points 11.
- Conductors of such small size are encountered in telephone cable, for example, such as the cables 17 and 19 shown in FIG. 5.
- the points 11 may be formed in the bendable member 10 by passing the material forming this member through a suitable die that is the shape of a roller or the like.
- a reinforcing member 14 which is provided with a suitable plastic coating 15 of insulating material is attached to the member 10 by bending the marginal parts 14a of this member 14 around the edges of the member 10, as shown in FIG. 3.
- the ends 15a of the insulation material extend beyond both the member 10 and the member 14, as shown in FIG. 1, to form borders of insulation material which prevent metallic contact between adjacent electrical connectors when a plurality of such connectors is employed for connecting conductors of a branch cable such as the branch cable 19 with the conductors of the main cable 17.
- the individual insulated conductors 20 of cable 19 are paired with the individual insulated conductors 18 of the main cable 17, with which they are to be connected and the electrical connectors of this invention are clamped over these paired conductors as shown in FIG. 4 in the case of the insulated conductors 13 and 16.
- the paired conductors are connected by clamping the electrical connectors with a hand tool such as a pair of pliers so that the points 11 of each connector pierce the insulation of the paired conductors and electrically connect these conductors together.
- This procedure facilitates the connecting the conductors 20 of cable 19 to the insulated conductors 18 of main cable 17 and results in considerable saving in time and labor since it is not necessary to strip the insulation off of the conductors, nor is it necessary to twist the b-ared conductors together and solder the joint.
- An electrical connector for connecting small insulated wires together without stripping insulation therefrom comprising a thin metallic member of electrically conducting material bent upon itself to provide opposing surfaces thereto which are adapted to be further bent toward each other to clamp small insulated electrical conducting wires therebetween, said opposing surfaces having sharp points facing each other pressed therefrom in staggered rows, said sharp points being spaced apart by distances not exceeding the diameter of the small insulated wire clamped between said surfaces so that said small wire cannot be clamped between said surfaces without at least several of said staggered points penetrating the insulation thereof to make contact with the wire, insulating material positioned on the outside of said thin metallic member to cover said member when said member is clamped on said wires, said insulating material extending beyond the sides of said thin metallic member to prevent adjacent ones of said members from contacting each other when a plurality of such members is employed in side by side relation in "a cable joint, and a reinforcing member clamped around said thin metallic member, said reinforcing member being substantially coextensive with
Landscapes
- Multi-Conductor Connections (AREA)
Description
Feb. 7, 1967 w, THOMPSON 3,303,266
ELECTRICAL CONNECTOR FOR SMALL INSULATED WIRES Filed Oct. 25, 1964 FIE-ILA :EII3 "5 INVENTOR.
WILLIAM A. THOMPSON ATTORNEYS United States Patent O 3,303,266 ELECTRICAL CONNECTOR FOR SMALL INSULATED WIRES William A. Thompson, 5264 Dent, San Jose, Calif. 95118 Filed Oct. 23, 1964, Ser. No. 406,062 2 Claims. (Cl. 174-84) This invention relates to an electrical connector for making electrical connections between a pair of relatively small insulated conductors without having to strip the insulation therefrom.
An object of this invention is to provide an improved electrical connector in the form of a bendable member having opposed surfaces which are provided with staggered insulation piercing pointed contacts adapted to pierce the insulation of a relatively small wire to make contact therewith and to provide electrical connection between a pair of such wires clamped between said opposed surfaces.
Another object of this invention is to provide an improved electrical connector a plurality of which may be used side by side for splicing the conductors of a multiple conductor branch cable to the conductors of a main multiple conductor cable without necessitating the cutting of any of the conductors of the main cable and without necessitating the stripping of insulation from any of the conductors.
Still another object of this invention is to provide an improved electrical connector which may be clamped around the small conductors of cables for connecting these conductors together without stripping the insulation or cutting the conductors, said electrical connectors being arranged side by side and being provided with insulation jackets to prevent the electrically conducting parts of adjacent connectors from making electrical contact.
A further object of this invention is to provide an electrical connector that may be used for splicing the conductors of one cable to those of another cable, said connectors being constructed so that they may be used efiiciently with small wires such as are used in telephone cables without requiring the stripping of insulation from the wires thus resulting in substantial savings in time and labor required to splice such cables.
Other and further objects of this invention will be apparent to those skilled in the art to which it relates from the following specification, claims and drawing, in which, briefly:
FIG. 1 is a side view of an electrical connector of this invention in the open position;
FIG. 2 is an end view of the open electrical connector;
FIG. 3 is a fragmentary sectional view taken along the line 3-3 of FIG. 1 showing the manner in which the small insulated conductors are positioned on the insulation piercing contact points of the electrical connector;
FIG. 4 is a view of the electrical connector of this invention clamped with a pair of small insulated wires clamped therebetween to electrically connect the wires; and
FIG. 5 is a view of a multiple conductor main cable having the conductors of a branch cable connected thereto by a plurality-of the electrical connectors of this in- 3,303,266 Patented Feb. 7, 1967 in the opposed surfaces are preferably staggered so that when a small electrical conductor 12 is positioned and clamped between these opposed surfaces, the likelihood of the conductor being lodged between the points 11 is prevented and instead the insulation [13 thereof pierced by a sufficient number of the points to make good electrical contact with the conductor 12. The staggering of the points 11 is important where electrical conductors 12 with diameter smaller than the distance between adjacent points 11 are clamped between the opposed surfaces so that electrical contact is made with the conductors by several of the points 11. Conductors of such small size are encountered in telephone cable, for example, such as the cables 17 and 19 shown in FIG. 5. The points 11 may be formed in the bendable member 10 by passing the material forming this member through a suitable die that is the shape of a roller or the like.
A reinforcing member 14 which is provided with a suitable plastic coating 15 of insulating material is attached to the member 10 by bending the marginal parts 14a of this member 14 around the edges of the member 10, as shown in FIG. 3. The ends 15a of the insulation material extend beyond both the member 10 and the member 14, as shown in FIG. 1, to form borders of insulation material which prevent metallic contact between adjacent electrical connectors when a plurality of such connectors is employed for connecting conductors of a branch cable such as the branch cable 19 with the conductors of the main cable 17. In splicing the conductors 20 of branch cable 19 to the conductors 18 of the main cable 17, the individual insulated conductors 20 of cable 19 are paired with the individual insulated conductors 18 of the main cable 17, with which they are to be connected and the electrical connectors of this invention are clamped over these paired conductors as shown in FIG. 4 in the case of the insulated conductors 13 and 16. The paired conductors are connected by clamping the electrical connectors with a hand tool such as a pair of pliers so that the points 11 of each connector pierce the insulation of the paired conductors and electrically connect these conductors together. This procedure facilitates the connecting the conductors 20 of cable 19 to the insulated conductors 18 of main cable 17 and results in considerable saving in time and labor since it is not necessary to strip the insulation off of the conductors, nor is it necessary to twist the b-ared conductors together and solder the joint.
While I have shown and described a preferred form of the invention, it will be apparent that the invention is capable of variation and modification from the form shown so that the scope thereof should be limited only by the proper scope of the claims appended thereto.
What I claim is:
1. An electrical connector for connecting small insulated wires together without stripping insulation therefrom comprising a thin metallic member of electrically conducting material bent upon itself to provide opposing surfaces thereto which are adapted to be further bent toward each other to clamp small insulated electrical conducting wires therebetween, said opposing surfaces having sharp points facing each other pressed therefrom in staggered rows, said sharp points being spaced apart by distances not exceeding the diameter of the small insulated wire clamped between said surfaces so that said small wire cannot be clamped between said surfaces without at least several of said staggered points penetrating the insulation thereof to make contact with the wire, insulating material positioned on the outside of said thin metallic member to cover said member when said member is clamped on said wires, said insulating material extending beyond the sides of said thin metallic member to prevent adjacent ones of said members from contacting each other when a plurality of such members is employed in side by side relation in "a cable joint, and a reinforcing member clamped around said thin metallic member, said reinforcing member being substantially coextensive with said thin metallic member and side portions of said reinforcing member being folded over edge portions of said thin metallic member.
2. An electrical connector as set forth in claim 1, further characterized in that said insulating material com- 4 prises a coating of plastic, the side portions of which are clamped in the folded over portions of said reinforcing member.
References Cited by the Examiner UNITED STATES PATENTS 3,242,256 3/1966 Jugle 17484 LEWIS H. MYERS, Primary Examiner.
Claims (1)
1. AN ELECTRICAL CONNECTOR FOR CONNECTING SMALL INSULATED WIRES TOGETHER WITHOUT STRIPPING INSULATION THEREFROM COMPRISING A THIN METALLIC MEMBER OF ELECTRICALLY CONDUCTING MATERIAL BENT UPON ITSELF TO PROVIDE OPPOSING SURFACES THERETO WHICH ARE ADAPTED TO BE FURTHER BENT TOWARD EACH OTHER TO CLAMP SMALL INSULATED ELECTRICAL CONDUCTING WIRES THEREBETWEEN, SAID OPPOSING SURFACES HAVING SHARP POINTS FACING EACH OTHER PRESSED THEREFROM IN STAGGERED ROWS, SAID SHARP POINTS BEING SPACED APART BY DISTANCES NOT EXCEEDING THE DIAMETER OF THE SMALL INSULATED WIRE CLAMPED BETWEEN SAID SURFACES SO THAT SAID SMALL WIRE CANNOT BE CLAMPED BETWEEN SAID SURFACES WITHOUT AT LEAST SEVERAL OF SAID STAGGERED POINTS PENETRATING THE INSULATION THEREOF TO MAKE CONTACT WITH THE WIRE, INSULATING MATERIAL POSITIONED ON THE OUTSIDE OF SAID THIN METALLIC MEMBER TO COVER SAID MEMBER WHEN SAID MEMBER IS CLAMPED ON SAID WIRES, SAID INSULATING MATERIAL EXTENDING BEYOND THE SIDES OF SAID THIN METALLIC MEMBER TO PREVENT ADJACENT ONES OF SAID MEMBERS FROM CONTACTING EACH OTHER WHEN A PLURALITY OF SUCH MEMBERS IS EMPLOYED IN SIDE BY SIDE RELATION IN A CABLE JOINT, AND A REINFORCING MEMBER CLAMPED AROUND SAID THIN METALLIC MEMBER, SAID REINFORCING MEMBER BEING SUBSTANTIALLY COEXTENSIVE WITH SAID THIN METALLIC MEMBER AND SIDE PORTIONS OF SAID REINFORCING MEMBER BEING FOLDED OVER EDGE PORTIONS OF SAID THIN METALLIC MEMBER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US406062A US3303266A (en) | 1964-10-23 | 1964-10-23 | Electrical connector for small insulated wires |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US406062A US3303266A (en) | 1964-10-23 | 1964-10-23 | Electrical connector for small insulated wires |
Publications (1)
Publication Number | Publication Date |
---|---|
US3303266A true US3303266A (en) | 1967-02-07 |
Family
ID=23606391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US406062A Expired - Lifetime US3303266A (en) | 1964-10-23 | 1964-10-23 | Electrical connector for small insulated wires |
Country Status (1)
Country | Link |
---|---|
US (1) | US3303266A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3514528A (en) * | 1967-11-13 | 1970-05-26 | Jimmy C Ray | Insulation piercing connector for wires |
US3539707A (en) * | 1967-11-10 | 1970-11-10 | Amp Inc | Electrical connector having unbonded insulation thereon |
US3621117A (en) * | 1970-08-25 | 1971-11-16 | Bell Telephone Labor Inc | Wrapped insulation-piercing connector |
US3777049A (en) * | 1971-08-02 | 1973-12-04 | G Gillemot | Bonding device and anchorage for shielded cables |
US3814836A (en) * | 1971-09-20 | 1974-06-04 | Nat Telephone And Supply Co | Connector for insulated conductors |
US3902004A (en) * | 1971-01-11 | 1975-08-26 | Post Office | Clips |
US4369794A (en) * | 1980-10-30 | 1983-01-25 | Mallinckrodt, Inc. | Probe with electrocardiographic monitoring |
US4833275A (en) * | 1987-03-04 | 1989-05-23 | Les Cables De Lyon | Flexible splice for an impregnated paper submarine cable |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3242256A (en) * | 1963-12-13 | 1966-03-22 | Reliable Electric Co | Insulation piercing connector |
-
1964
- 1964-10-23 US US406062A patent/US3303266A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3242256A (en) * | 1963-12-13 | 1966-03-22 | Reliable Electric Co | Insulation piercing connector |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3539707A (en) * | 1967-11-10 | 1970-11-10 | Amp Inc | Electrical connector having unbonded insulation thereon |
US3514528A (en) * | 1967-11-13 | 1970-05-26 | Jimmy C Ray | Insulation piercing connector for wires |
US3621117A (en) * | 1970-08-25 | 1971-11-16 | Bell Telephone Labor Inc | Wrapped insulation-piercing connector |
US3902004A (en) * | 1971-01-11 | 1975-08-26 | Post Office | Clips |
US3777049A (en) * | 1971-08-02 | 1973-12-04 | G Gillemot | Bonding device and anchorage for shielded cables |
US3814836A (en) * | 1971-09-20 | 1974-06-04 | Nat Telephone And Supply Co | Connector for insulated conductors |
US4369794A (en) * | 1980-10-30 | 1983-01-25 | Mallinckrodt, Inc. | Probe with electrocardiographic monitoring |
US4833275A (en) * | 1987-03-04 | 1989-05-23 | Les Cables De Lyon | Flexible splice for an impregnated paper submarine cable |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5607320A (en) | Cable clamp apparatus | |
US3112147A (en) | Insulation crushing solid wire clip terminal | |
US1706005A (en) | Method of making cord tips | |
US3173991A (en) | Electrical cable with perforated separator strip | |
US3320354A (en) | Insulation piercing electrical connection | |
US4062615A (en) | Electrical contact | |
US3553347A (en) | Wire connectors | |
GB1102948A (en) | Electrical connector for crimping through an insulating sheath of a conductor | |
US4154977A (en) | Multiconductor cable adapted for mass termination and for use in limited space | |
US2476738A (en) | Solderless blade for plug caps | |
US3514528A (en) | Insulation piercing connector for wires | |
US3753213A (en) | Method and means for connecting to a metallically sheathed cable | |
US3303266A (en) | Electrical connector for small insulated wires | |
US4070082A (en) | Insulation piercing tap for flat wire | |
US3778749A (en) | Connector | |
KR960006145A (en) | Flat cable with conductor end connectable to the connector | |
US2820843A (en) | Cross connector for electrical conductors | |
US3594704A (en) | In-line connector for electrical conductors or the like | |
US1875241A (en) | Electrical cord terminal | |
US2749383A (en) | Electrical connector | |
US3662089A (en) | Modifications of wire connectors | |
US3526870A (en) | Spring tension connector for wire-wrap post | |
US2982938A (en) | Insulation piercing terminal | |
US3897993A (en) | Wire connecting device having improved wire trimming means | |
US3405385A (en) | Quick connect solderless wire connector |